Hi! My reaction is to say what a treat! And it's interesting to know those Bird Roosting pouches can attract them. Maybe you could post a picture or two?! Anyway, if you think the pouch is just toooo close to the door, there's some good info here about moving it a little bit away - Moving bumblebee nests - Wildlife - Blog - gardenersworld.com
ATB, Dill

Thanks all for the feedback - I have identified the species as indeed the 'tree Bee', and will get some photo's over the next few days... Have not decided to move the nest or not yet!

That's brilliant! It was a few years ago that I first read about this new coloniser (tree bumblebee). I was right eager to see one, but it was only last summer when I saw my first, in the garden.
If it was me, I'd leave well alone. I'd hate to disturb/upset them in any way.....but that's just me.